Ribbon for use in making infusions of coffee and other material



.May 20, ,1930. l -j H. A.K` .MED|- `1,r75:= ,166 RIBBON FOR USE LN4v MAKING INFUfs-IQNS oF COFFEE `AND OTHERMATERIAL .Filed July 25,]1927 zsneets-snee 1` nigga ---5-,-lrlisrliJ May 20, 1930. H. A. MEDIN 1,759,166

RIBBON FOR USE IN MAKING INFUSONS OF COFFEE AND OTHER MATERIAL Filed July 25, 1927 2 sheets-sheet 2 In ven for: lf. Medl'n..

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Patented May 20, 1930.

UNITED STATES PATENT OFFICE HARRY A. MEDIN, OF MINNEAPOLIS, MINNESOTA RIBBON FOR USE IN MAKING INFUSIONSV F COFFEE AND OTHER MATERIAL Application led July 25, 1927. Serial No. 208,169.

My invention relates to ribbons for use in making infusions of coffee and other material. Before the time of. my invention, it has been proposed to make infusions of coffee by feeding the ground coffee into a receptacle where it is subjected to the action of hot Water and it has been proposed to make infusions of coffee. tea, etc., by placing material in sacks and subjecting the filled sacks to the action of hot Water. But so far as I am aware, it has never before been proposed to place the coffee or other material to be infused in ribbonlike form. An object of my invention, therefore, is to provide ribbons of the material to be infused in order that the same may be progressively subjected to the action of an infusing agent for extracting the desired properties from the material. The ribbons preferably consist of pervious, flexible materialsucli as woven fabric employed in the form of fiat casings Which are filled or nearly filled with the coffee or other material which is to be treated. These ribbons When thus made up are intended to be progressively subjected to the action of hot Water or other infusing agent for extracting the essential properties of the material. lt will be understood t-hat any convenient means may be employed for feeding the ribbons while at the same time subjecting them to the action of the infusing agent. A machine for such purpose is disclosed and claimed in my application Serial Number 268,400 filed April 9, 1928.

The full objects and advantages of my invention will appear in connection with the detailed description thereof, and the novel features of my inventive idea will be particularly pointed out in the claim.

In the accompanying drawings which illustrate my invention in some of the forms in which it may be embodied,-

Fig. 1 is a plan View of one form of the invention. Fig. 2 is a plan view of another form. Fig. 3 is a plan View of another form. Fig. 4 is a plan view of another form. Fig. 5 is a. view in section on the line 5-5 of Fig. 4. Fig. 6 is a view in section on the line 6-6 of Fig. 1. Fig. 7 is a view in section on the line 7-7 of Fig. 1.

Referring first to the form of the invention shown inl Figs. 1, 6, and 7, the numeral 10 designates a tubular casing of Vprevious flexible material such as -woven fabric. As shown particularly in Fig. 7, two strips of this material are. stitched together at their longitudinal edges `as indicated at 12 to produce the casing. This casing is stitched cross- Wise at intervals as indicated at 14 to form a succession of pockets, each pocket being filled With coffee or other material M and closed by a line of stitching as the'filling operation proceeds. A composite ribbon is thus produced which consists of a flat core of the material which is to be subjected to the infusing agent, this core being enclosed in the previous casing. The casing preferably at each of its two ends is left with a short unfilled space as indicated at 16 While secured to the eXtreme ends are hook members 18 clinched thereto. In the form shown in Fig. 2, a central longitudinal line of stitching 20 is provided in place of the transverse stitching while in the form shown in Fig. 8 several longitudinal vlines of stitching 22 are provided. In the forms shown in Figs. 4 and 5, an interrupted longitudinal line of stitching 24 is provided, the portions ofthe casing not provided with this stitching being left unfilled so that blank sections 26 are provided between a series of pockets filled with the material which is to be treated. All of thcforms are preferably provided with blank end portions 16 having hook members 18 secured thereto.

The advantages of my invention will be readily understood in connection with the foregoing descri tion. The composite rib bon including tie encased material to be treated may be fed progressively as long as it is desired to continue the operation of subu jecting the material to the action of the infusing fluid or agent. The hooks 18 provide interengaging members for hooking together ay succession of the ribbons is desired to continue the operation for a considerable period of time. The blank end spaces 16 provide against a section of the material not being fully subjected to the infusing agent when the feeding operation is Ywhen it started While the blank sections 26 have the same effect when a complete ribbon is not treated during a continuous period of time.

` If the coffee or other material .to be treated is in a finely ground or ulverized condition, it will be understood t at a finer mesh or more closely woven fabric must be employed than is the case when the material is in larger particles or pieces.

I claim:

A ribbon for use in making infusions of coffee and other materials comprising a thin fiat layer o f such material of extended length such that a portion only of the ribbon Will be employed at any one time in making the infusion, such layer being continuous and of uniform thickness, and strips of pervious flexible mesh' for holding said material in such continuous thin Hat layer.

In testimony whereof I hereunto aiix my signature.

HARRY A. MEDIN. 

